http://bugzilla.opensuse.org/show_bug.cgi?id=974062 http://bugzilla.opensuse.org/show_bug.cgi?id=974062#c1 Takashi Iwai changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |otuominen@suse.com, | |tiwai@suse.com Flags| |needinfo?(otuominen@suse.co | |m) --- Comment #1 from Takashi Iwai --- How often do you see this? The first one indicates about eDP, and such a FIFO underrun may happen sometimes, and not always a serious bug. The latter indicates either DP or eDP getting out of sync. Usually this kind of error is seen at the initialization of the device. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=974062 http://bugzilla.opensuse.org/show_bug.cgi?id=974062#c3 Olli Tuominen changed: What |Removed |Added ---------------------------------------------------------------------------- Flags|needinfo?(otuominen@suse.co | |m) | --- Comment #3 from Olli Tuominen --- Before sddn (login screen loads) there is some additional message. Where I could check it? I get these messages from every boot. Apr 05 15:43:53 linux-y6bi kernel: [drm:intel_dp_start_link_train [i915]] *ERROR* failed to update link training Apr 05 15:47:30 linux-y6bi kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=974062 http://bugzilla.opensuse.org/show_bug.cgi?id=974062#c6 Takashi Iwai changed: What |Removed |Added ---------------------------------------------------------------------------- Flags| |needinfo?(otuominen@suse.co | |m) --- Comment #6 from Takashi Iwai --- Showing the dmesg command output should be fine. And, is it a regression? Try to boot with older kernels (4.4.x) and see whether you see the similar messages. In doubt, upload dmesg outputs on both 4.4.x and 4.5 kernels. -- You are receiving this mail because: You are on the CC list for the bug.